MARY HEWITT, APN
Adult Health Nurse Practitioner in PALOS PARK, Illinois. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.
What the federal data shows
MARY HEWITT, APN filed 438 Medicare Part D claims in 2023 as a Adult Health Nurse Practitioner in PALOS PARK, Illinois.
- 438
- Part D claims, 2023
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.
MARY HEWITT, APN's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023 — across all CMS prescribers nationally
438 Top 38% higher than 62% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Medicare Part D Prescriber Public Use File · 2023
What does the federal data show about MARY HEWITT, APN?
Quality data not reportedPrimary specialty
Medicare Part D claims
Specialty distribution in Illinois
How Adult Health Nurse Practitioner compares to other specialties among Illinois providers
Adult Health Nurse Practitioner share within Illinois
Adult Health Nurse Practitioner is one of the more visible NUCC categories in Illinois
Each bar reflects the share of in-state providers whose primary NUCC taxonomy matches the specialty. Long tail of ~690 NUCC codes folded into "Other" to keep the comparison legible.
Specialty board-certification context
Estimated specialty board-certified rate — Adult Health Nurse Practitioner (ABMS / AOA reference)
- Est. board-certified rate
- 78%
- Adult Health Nurse Practitioner ABMS/AOA estimate
Est. board-certified rate (Adult Health Nurse Practitioner) — ABMS / AOA estimate
Verify credentials
- Verify via ABMS free public lookup
- Verify via AOA osteopathic boards
- Specialty volume Adult Health Nurse Practitioner US NPIs
Specialty board-certified rate — Adult Health Nurse Practitioner estimate
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus Maintenance of Certification cycles. CMS does not publish a per-provider board-certification field; the figure shown is the specialty-level estimated rate from ABMS / AOA reference data.
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
MARY HEWITT, APN appears in the CMS NPPES registry as a Adult Health Nurse Practitioner provider holding APN credentials at 13011 S 104TH AVE STE 100, PALOS PARK, IL, 60464, with a listed phone of (708) 274-3278. NPI 1952653438 was issued on 10/09/2012. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HEWITT most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.
Medicare Part D records for calendar year 2023 show 438 prescription claims written by this provider, covering 11 Medicare beneficiaries and totaling roughly $5K in drug spend. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.
Adult Health Nurse Practitioner is a mid-sized specialty nationwide, with 29,492 enrolled providers across 55 states and an average of 1,201 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1952653438 |
|---|---|
| Specialty | Adult Health Nurse Practitioner |
| Credentials | APN |
| Gender | Female |
| NPI Issued | 10/09/2012 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm MARY HEWITT, APN's current license status, disciplinary history, and board certifications with the Illinois Department of Financial and Professional Regulation in Illinois before relying on this page for a clinical or care decision.
How we sourced this profile
Hospital and facility affiliations
Facilities where MARY HEWITT, APN bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
License & disciplinary context — Illinois IDFPR 2023 annual report
Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~42K Illinois medical licensees in 2023 — they are NOT specific to MARY HEWITT, APN. To verify MARY HEWITT, APN's current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
IDFPR publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
Prescribing Breakdown
- 30-Day Fills
- 438
- Total Day Supply
- 7,246
- Generic Drug Cost
- $4K
Patient Demographics
- Average Patient Age
- 81.5 years
- Avg HCC Risk Score
- 1.98
- Age Distribution
- <65: 0, 65-74: N/A, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What MARY HEWITT, APN prescribes most
Top Medicare Part D drugs by claim count, 2023
- Pantoprazole Sodium
Pantoprazole Sodium
40 claims
- Amlodipine Besylate
Amlodipine Besylate
35 claims
- Atorvastatin Calcium
Atorvastatin Calcium
35 claims
- Hydrochlorothiazide
Hydrochlorothiazide
27 claims
- Donepezil Hcl
Donepezil Hcl
26 claims
- Levothyroxine Sodium
Levothyroxine Sodium
21 claims
- Olanzapine
Olanzapine
20 claims
- Lisinopril
Lisinopril
19 claims
| Drug | Claims |
|---|---|
| Pantoprazole Sodium | 40 |
| Amlodipine Besylate | 35 |
| Atorvastatin Calcium | 35 |
| Hydrochlorothiazide | 27 |
| Donepezil Hcl | 26 |
| Levothyroxine Sodium | 21 |
| Olanzapine | 20 |
| Lisinopril | 19 |
| Metformin Hcl Er Metformin Hcl | 19 |
| Carvedilol | 16 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Adult Health Nurse Practitioner Overview
How MARY HEWITT, APN fits within the Adult Health Nurse Practitioner landscape nationally.
MARY HEWITT, APN's 438 claims are below the specialty average of 1,201.
Nearby Adult Health Nurse Practitioner Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as HEWITT.
Compare Adult Health Nurse Practitioner nationally: see state-by-state distribution →
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Frequently Asked Questions
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Data Sources
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology